Bauermeister industrial grinding mills and air classifiers

Bauermeister fine grinding machinery: universal impact mills UM 0.3 to 6.3, counter-rotating pin mills UMP, gap mills GM, roller mills, and air classifiers.

Universal Impact Mills UM Series

Bauermeister Universal Mills UM Series provide fine dry grinding of soft and medium-hard mineral, food, and chemical materials up to 4–5 Mohs. Modular design enables prompt exchange of grinding elements to match specific industrial processing demands.

Seven production machine sizes engineered with electric motor power from 7.5 to 160 kW
Interchangeable rotors: turbo element, pinned disc, cross beater, and crown ring assembly
Perforated sieve rings available with finely graded screening perforations from 0.1 to 30 mm
Fabricated housing constructed from durable carbon steel or grade 316 stainless steel alloy

Counter-Rotating Pin Mills UMP Series

Bauermeister counter-rotating pin mill UMP 4.4N Ex is engineered for fine grinding and intensive disagglomeration of cocoa press cake and fatty ingredients. Opposite disc rotation delivers high fineness without unwanted heat development in the milling chamber.

Dual counter-rotating pinned discs driven by independent frequency-controlled motors
Pressure-shock resistant construction fully compliant with stringent ATEX standards
Air cooling design preventing thermal deterioration of temperature-sensitive media
Air-purged labyrinth seals protecting high-load roller bearings from fine dust

Fine Grinding Gap Mills GM Series

Bauermeister Gap Mills GM are developed for fine milling of temperature-sensitive materials including pectin, starch, and sugar. Milling is performed within an adjustable gap between rotor and conical stator at high tip speed without requiring mechanical sieves.

Continuously adjustable grinding gap smoothly tuned within the 1 to 5 mm tolerance range
High peripheral rotor tip speed reaching up to 123 m/s for rapid impact reduction
Robust welded steel construction delivering dependable continuous multi-shift operation
Hygienic easy-clean chamber layout ensuring reduced non-productive maintenance downtime

Industrial Roller Mills Series 250

Bauermeister Roller Mill Series 250.1, 250.2, and 250.3 are engineered for effective grinding of brittle and hard bulk materials. These roller units yield a narrow particle size distribution while generating minimal dust and unwanted fines during processing.

Heavy-duty chilling alloy corrugated rolls offering extended wear operational lifespan
Automated roll gap parallelism adjustment with micrometer accuracy under load
Integrated feeder roll assembly providing continuous uniform bulk material stream
Ergonomic maintenance access allowing rapid roll swapping and bearing inspection

Dynamic Air Classifiers CL Series

Bauermeister CL Series Air Classifiers are applied for ultra-fine dry separation of micro-powders in continuous air streams. These precision classifying units separate targeted particle sizes without mechanical screen cloths, preventing clogging issues.

Sharp cut point adjustment spectrum broadly adjustable between 4 and 160 microns
High separation selectivity suitable for abrasive and heat-sensitive mineral dusts
Interchangeable classifying rotor wheel designs tailored for coarse or ultrafine cuts
Readily connected into closed circuit aerodynamic loops with process gas recovery

Flaker Roller Mills ZWG Series

Bauermeister Flakers ZWG are designed for the oilseed processing industry to roll cracked oil seeds into thin flakes before extraction. Controlled hydraulic roll pressure breaks cellular structures of soybeans, rapeseed, and sunflower seeds efficiently.

Infinitely variable roll pressure exerted via hydraulic cylinders between 50 and 80 bar
Electrohydraulic gap safety release mechanism protecting rolls from foreign tramp iron
Precision forged chilled alloy rolls with hardened operational outer cylinder mantle
Integrated heavy pneumatic scraper doctor blade assembly keeping rolls continuously clean

Selecting grinding rotors for UM universal impact mills

Bauermeister UM Series universal impact mills allow precise optimization of grinding rotor geometry according to the mechanical and physical attributes of the processed feed material.

For brittle crystalline dry solids such as granulated sugar, industrial salt, or mineral fertilizer, maximum performance is achieved with pinned discs or cross beater rotors delivering high impact energy in the free-flight milling zone.

When processing heat-sensitive hydrocolloids, starch, and pharmaceutical formulations, turbo rotors coupled with continuous sieve rings are preferred to ensure powerful airflow and rapid discharge of ground particles without thermal degradation.

Counter-rotating milling of cocoa products on UMP pin mills

Counter-rotating pin mills Series UMP 4.4N Ex are specifically engineered to accommodate the rheological properties of oily and fatty food ingredients, particularly press cake from cocoa processing lines.

The technical execution features two independently driven pinned discs rotating in opposite directions with adjustable tip speeds. By generating intensive shear gradients and turbulent micro-vortices, agglomerated fatty lumps are dispersed to narrow particle ranges below 75 microns.

Controlled chilled dry air prevents pasty buildup on pin surfaces, avoiding cocoa butter melting and ensuring consistent processing output.

Precision narrow gap milling with Gap Mill GM technology

The operational principle of Bauermeister Gap Mills GM relies on high-speed shear and impact grinding within a circumferential narrow gap formed between a rotating conical rotor and stationary stator mantle.

The grinding gap width is finely adjusted with micrometer precision between 1 and 5 mm, while peripheral rotor tip speed reaches up to 123 m/s.

This allows ultrafine pulverizing of temperature-sensitive polymers, pectin, and modified starch without mechanical screen cloths prone to wear and blinding. Optimized interior aerodynamics provide ongoing cooling of processed materials and economical energy utilization.

Roll gap adjustment and operation of Series 250 roller mills

Bauermeister roller mills Series 250.1, 250.2, and 250.3 are built for multi-stage milling of granular brittle bulk products with demanding grain uniformity specifications. Chilled iron alloy rolls feature customized corrugation fluting patterns and hardened surface layers to resist wear.

When processing grain, spices, and mineral granules, maintaining strict roll parallelism under heavy load is vital.

Micrometric gap setting mechanisms equipped with spring or hydropneumatic release systems safeguard working roll mantles from foreign bodies, guaranteeing uniform particle cuts with minimal dust generation.

Aerodynamic powder classification with dynamic CL separators

Dynamic air classifiers Series CL deliver sharp dry fractionation of fine bulk powders into fine and coarse streams spanning cut points between 4 and 160 microns.

Separation is governed by the equilibrium between centrifugal force imparted by the rotating classifier wheel and aerodynamic drag of incoming gas flow. Precise rotor speed modulation via variable frequency control enables prompt adaptation to required particle size distributions.

Installing specialized classifying wheel rotor variants facilitates efficient separation of both adhesive powders and abrasive mineral fines.

Hydraulic flaking of oilseed crops using ZWG roller units

Heavy-duty flaking roller mills Series ZWG perform continuous plastic deformation and flaking of pre-crushed oilseeds including sunflower, rapeseed, and soybeans prior to solvent oil extraction.

Uniform linear roll pressure between 50 and 80 bar is generated through hydraulic power cylinders regulated by proportional hydraulic valves. Heavy compression breaks plant cell walls and forms thin flakes measuring 0.25 to 0.35 mm in thickness with extensive capillary networks.

This dramatically enlarges solvent contact surface area and improves oil recovery yield during subsequent percolation.

Bauermeister and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Bauermeister and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.